Water-cooled valve



A. F. SCHUMANN.

WATER COOLED VALVE.

APPLICATION FILED MAY 28. 1918.

1,3 l 8, 1 22. Patented Aug. 12, 1919.

UNITED STATES PATENT OFFICE.

ALFRED IE. SCHUMANN, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-THIRD TO WILLIAM C. CODIJAND ONE-THIRD T0 ALBERT G. SCHUMANN, BOTH 0F BALTI- MORE, MARYLAND.

WATEBr-COOLED VALVE.

Specification of Letters Ifatent.

Patented Aug. 12, 1919.

To all whom it may concern:

Be it known that I, ALFRED F. SGHUMANN, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in VVater-Cooled Valves; and I do hereby declare the following to be a full, clear, and exact description of the inven tion, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a valve for controlling the flow of gas through a regenerative furnace illustrated in a co-pending application, Serial #71077 filed by me J anuary, 8, 1916, and the primary object of the invention is to provide an improved valve which is water cooled, so as to eliminate the distortion of the same by the heat of the furnace.

Another object of the invention is to provide an improved valve seat for the valve which is also cooled by water, the valve and seat having an improved means for controlling the flow and circulation of water therethrough.

A further object of the invention is to provide guides for engaging the valve stem, so as to slightly rotate the valve as the same is raised or lowered, so as to effect a proper seating of the same and to also drive the dust, the dirt and the like from the valve seat.

Another object of the invention is to provide an improved valve and seat of the above character, which is extremely durable and eificient in use, one that is comparatively inexpensive to manufacture, and one that can readily and easily be applied to a regenerative furnace.

With these and other objects in view this invention consists in the novel construction,

arrangement and formation of parts as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawing, forming a part thereof in which:

Figure 1 is a side elevation partly in section of the improved valve and seat,

Fig. 2 is a plan view of the valve seat,

Fig. 3 is an elevation of the guides showing the same in engagement with the rollers carried by the valve stem for rotating the valve, and

Fig. 4 is a plan view of the rollers carried by the valve stem, showing the same in the guide ways, the guide ways being shown in section.

Referring to the drawing in detail, wherein slmilar reference numerals designate corresponding parts throughout the several views, the numeral 1 generally indicates the lmproved valve, which is arranged to seat on an annular valve seat 2 which is arranged 1n a duct 3 or other passage way. The valve seat 2 consists of a ring of cast metal or other suitable material and is provided with a beveled upper plate 4 for receiving the improved valve l, which is of the mushroom type. The plate 4 has a plurality of inlet pipes 5 and outlet pipes 6 connected thereto and the same extend upwardly and outwardly through a steel cap or casing 7 fitted over the passage way. The cap 7 has inwardly and outwardly extending bosses 8 and 9 which receive the inlet and outlet pipes and heavy pipe sections 10 are fitted over the inlet and outlet pipes and bear against the upper surface of the annular valve seat 2 and the lower surfaces of the bosses 9 and form means for separating the inlet and outlet pipes from the hot gases to form a protecting cover for the same. Suitable nuts 11 are turned on the upper ends of the inlet and outlet pipes which form means for holding the pipes in position. The inlet and outlet pipes are connected by couplings 12 with suitable supply and return pipes 13 and 14. The gas valve 1 is hollow to form an interior chamber 15 which is provided with a hollow tubular stem 16, which communicates with the chamber 15 and is connected to the valve by a suitable coupling member 17 and is slidably mounted through the central portions of the cap 7, which is provided with a stuffing box 18 which is packed with asbestos or other non-combustible packing material 19, which is held in place by suitable plug 20 and. is adapted to prevent the escape of gas. from the dome. An inlet pipe 20 extends through the tube 16 and extends into the valve 1 and short of the bottom thereof and the same is connected by plug 21 to a fourway coupling 22 which is connected to the upper end of the tubular stem 16, which constitutes-an outlet for the water. Suitable outwardly extending pipes 23 are inserted into the fourway coupling 22 and one of the same constitutes a means for connecting the return pipe of. the Water thereto. A flexible inlet pipe 2a is connected to the upper terminal of the pipe The outwardly extending pipe sections 23 carry rollers 25 which are adapted to be received in guide ways 26 which are arranged on each side of the stem 16 and the lower ends of the guides 26 have curved terminals 27. It is to be understood that the terminals 27 and the guide rods 26 of each pair are directed in opposite directions and as the valve is lowered in its seat, the same cause the same to rotate and thus form a perfect seating.

The pipes 10 are all of exactly the same length which forms means for keeping the dome 7 parallel with the valve seat 2 and thus keeps the stufling gland 20 centered in is the most eliicient and practical; yet realizing the conditions concurrent with the adopt-ion of my device will necessarily vary,

I desire to emphasize the fact that various n1inor changes in details of construction,

proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention as set forth. 7 e What I claim as new is:

1. A device of the class described, including a duct or passage way, a valve seat therein including a hollow ring, a cap arranged above said seat, inlet and outlet pipes communicating with the hollow ring, and extending through the cap, a hollow valve arranged to coact with the seat, and protecting pipes spaced from and receiving said inlet and outlet pipes and engaging the hollow ring and cap to hold the ring and cap in correct spaced relation.

2. A device of the class described, a duct or passage way, an annular valve seat arranged therein, a hollow valve adapted to coact with the seat, a hollow outlet stem communicating with the hollow valve, outwardly extending hollow arms carried by and communicating with the stem, an inlet pipe carried by the hollow stem and guide rollers carried by the arms, and guides to receive said rollers for rotating said valve when moved toward its seat.

In testimony whereof I affix my signature in presence of two witnesses.

ALFRED F. SCHUMANN.

Witnesses:

CALVERT R. LEACH, ADAM F. DURKEL. 

